论文部分内容阅读
为满足广大养殖户对鳜鱼大规格鱼种的需要,我场1998、1999两年将本场自繁自育至1.7—2.0厘米左右的部分鳜鱼乌仔直接转入池塘培育,通过配套合适的饵料鱼等技术措施,经1个月左右的培育,平均亩产3.5—7厘米的大规格鳜鱼种2374尾,亩获利8643元,投入产出比1∶3.8以上,平均成活率72.6%,平均出塘规格5.2厘米,现将方法和体会小结如下:
In order to meet the needs of the majority of farmers for the large-sized species of anchovy, I field in 1998 and 1999 will be the field of self-breeding to 1.7-2.0 cm or so part of the anchovy Wu Zi directly into the pond to cultivate, through supporting the appropriate Of bait fish and other technical measures, after about 1 month of cultivation, the average yield of 3.5-7 cm large size catfish species 2374, profit 8643 yuan per mu, input-output ratio of 1: 3.8 or more, the average survival rate of 72.6 %, An average of 5.2 cm specifications Tong, now the method and experience are summarized as follows: